October 2025 brought typical autumn weather to the province of Groningen, with temperatures remaining slightly below normal and precipitation levels close to seasonal averages. The month presented a mixed picture of mild days and increasingly cold nights as autumn progressed, characteristic of the transitional season in the northern Netherlands.
Temperature Overview
The average temperature for October in Groningen reached 11.7 degrees Celsius, which was 0.3 degrees below the normal value of 12.0 degrees. This minor deviation indicates relatively stable conditions compared to historical patterns. The warmest day occurred on October 7th in Stadskanaal, where temperatures peaked at 19.4 degrees Celsius, providing a pleasant autumn day. In contrast, the coldest conditions were recorded on October 18th, also in Stadskanaal, when temperatures dropped to just 3.1 degrees Celsius, marking a significant temperature swing of over 16 degrees between the month's warmest and coldest days.
Precipitation Patterns
Total precipitation across Groningen averaged 119.9 millimeters, representing a 2 percent decrease from the normal monthly total of 122.9 millimeters. Despite this slight deficit, rainfall remained relatively consistent with seasonal expectations. The wettest single day occurred on October 4th in Eemsdelta, where 37.4 millimeters of rain fell. Eemsdelta also recorded the highest total precipitation for the month at 124.2 millimeters, indicating that coastal and northern areas experienced slightly more moisture than other parts of the province.
Sunshine and Notable Conditions
Sunshine hours totaled 175.7 hours across the month, exceeding the normal value of 173.3 hours by 1 percent. This modest surplus suggests that despite October's typically grey reputation, the province experienced slightly more sunny intervals than average, contributing to a relatively pleasant autumn month overall.